Aries JPA should use the persistence bundle's context to obtain the Persistence Provider service

Some JPA implementations (Hibernate) register a service factory for their Persistence Provider and cache bundle-level data in the service.

Aries JPA always uses its own Bundle Context to do the service "get" which confuses Hibernate into doing the wrong thing. This causes problems such as:

https://hibernate.atlassian.net/browse/HHH-10855